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[maskedpump]

Hey guys, was just wandering, and not to be given any harsh words, but I'm wanting to fit a dump valve to my 2.2 dti omega.

I know you get a nice 'pssshhh' sound when letting lose on the gas or changing gear if you remove the air box just before the air flow cencor. However I want something a tad better and better sounding.

Any advice is greatly appreciated

[martin42]

There used to be a kit you could buy,and it was operated by a micro switch on the gas pedal,so when you lifted off it used to operate the dump valve,was approx £100 .

[maskedpump]

There used to be a kit you could buy,and it was operated by a micro switch on the gas pedal,so when you lifted off it used to operate the dump valve,was approx £100 .

OK thanks, any idea what they're called or where to look?

[martin42]

Try eBay 

[Elite Pete]

I just get my misses to make the Pshhhhh noise its so much cheaper

[tgm147]

http://www.zen19051.zen.co.uk/prod01.htm

Heard good things about him too.

[jonnyboyws6]

I will restrain from commenting about diesels as you ask!

I've got a Bailey on my Celica and it sounds great, so good in fact it almost makes up for the 4 cylinder exhaust note, so I reckon if you can find something that makes yours sound as good go for it

[freecall666]

why put one on, every one ive seen on these boy racer cars has trouble going up hills ??

[feeutfo]

Peg a playing card to the spokes...?

[Webby the Bear]

Dump valves. Why? lol do they actually aid performance other than the ''ttsssshhh''?

[Kevin Wood]

You need to have a throttle to have a dump valve, and diesels don't have a throttle.

[martin42]

That's why its controlled electronically 

[Kevin Wood]

That's why its controlled electronically 

But why fit it at all? The point of a dump valve is to relieve excess boost when the throttle is closed suddenly and the turbo is still spinning at full chat. You don't have a throttle, so don't need to relieve the boost. On a diesel surely all it'll do is give you more lag when you get back on the power, as the turbo has to build pressure in all the intake pipework again? 

.. if it's just for the noise, surely an electronic box that goes "pisssssh" connected to the microswitch would be a better idea?

[dad1uk]

I just get my misses to make the Pshhhhh noise its so much cheaper

You sure about that Pete?

There used to be a kit you could buy,and it was operated by a micro switch on the gas pedal,so when you lifted off it used to operate the dump valve,was approx £100 .

You don't value Mrs Pete very highly!!

[TheBoy]

I'm with Kevin Wood, I don't think it can be made to work on a diesel...